./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 08:34:31,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:31,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:31,560 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:31,560 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:31,561 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:31,562 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:31,563 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:31,564 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:31,565 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:31,565 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:31,566 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:31,566 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:31,567 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:31,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:31,568 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:31,569 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:31,570 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:31,572 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:31,573 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:31,574 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:31,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:31,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:31,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:31,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:31,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:31,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:31,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:31,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:31,580 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:31,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:31,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:31,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:31,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:31,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:31,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:31,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:34:31,594 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:31,594 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:31,595 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:31,595 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:31,596 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:31,596 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:34:31,596 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:34:31,596 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:34:31,596 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:34:31,596 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:34:31,597 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:34:31,597 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:31,597 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:31,597 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:34:31,597 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:31,597 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:31,598 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:34:31,599 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:31,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:34:31,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:31,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:31,599 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:34:31,599 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:31,600 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:31,600 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:34:31,600 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:34:31,601 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b [2018-11-18 08:34:31,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:31,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:31,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:31,638 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:31,638 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:31,638 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-18 08:34:31,684 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/data/c31300376/df8a3b24e31b426d8945cdcaf6f16f81/FLAGaf9773ec7 [2018-11-18 08:34:32,002 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:32,003 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-18 08:34:32,006 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/data/c31300376/df8a3b24e31b426d8945cdcaf6f16f81/FLAGaf9773ec7 [2018-11-18 08:34:32,440 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/data/c31300376/df8a3b24e31b426d8945cdcaf6f16f81 [2018-11-18 08:34:32,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:32,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:34:32,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:32,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:32,446 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:32,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf05c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:32,468 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:32,578 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:32,583 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:32,594 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:32,604 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:32,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32 WrapperNode [2018-11-18 08:34:32,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:32,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:32,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:34:32,605 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:34:32,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:34:32,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:32,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:32,629 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:32,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:32,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:32,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:32,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:32,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1da2bcfc-fbd9-4a4e-a088-4af207fdbf4a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:34:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:32,835 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:32,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:32 BoogieIcfgContainer [2018-11-18 08:34:32,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:32,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:34:32,836 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:34:32,840 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:34:32,840 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:32,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:34:32" (1/3) ... [2018-11-18 08:34:32,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e377fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,842 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:32,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (2/3) ... [2018-11-18 08:34:32,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e377fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,842 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:34:32,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:32" (3/3) ... [2018-11-18 08:34:32,844 INFO L375 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-18 08:34:32,892 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:32,893 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:34:32,893 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:34:32,893 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:34:32,893 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:32,893 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:32,893 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:34:32,893 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:32,893 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:34:32,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-18 08:34:32,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-18 08:34:32,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:32,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:32,923 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:32,923 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-18 08:34:32,923 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:34:32,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-18 08:34:32,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-18 08:34:32,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:32,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:32,926 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:32,926 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-18 08:34:32,933 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res; 7#L24-3true [2018-11-18 08:34:32,934 INFO L796 eck$LassoCheckResult]: Loop: 7#L24-3true assume true; 12#L24-1true assume !false;assume { :begin_inline_eval } true; 17#L14loopEntrytrue assume !true; 10#L14-3true assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 19#L4true assume !(0 == __VERIFIER_assert_~cond); 14#L4-2true assume { :end_inline___VERIFIER_assert } true; 7#L24-3true [2018-11-18 08:34:32,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:32,940 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 08:34:32,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:32,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:32,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:32,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:32,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1071102861, now seen corresponding path program 1 times [2018-11-18 08:34:33,006 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:34:33,027 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 08:34:33,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:34:33,037 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2018-11-18 08:34:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,041 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-11-18 08:34:33,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:34:33,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 10 transitions. [2018-11-18 08:34:33,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 08:34:33,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 9 transitions. [2018-11-18 08:34:33,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 08:34:33,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 08:34:33,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 9 transitions. [2018-11-18 08:34:33,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,049 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-18 08:34:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 9 transitions. [2018-11-18 08:34:33,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-18 08:34:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 08:34:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-18 08:34:33,069 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-18 08:34:33,069 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-18 08:34:33,069 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:34:33,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2018-11-18 08:34:33,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 08:34:33,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:34:33,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:34:33,070 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 08:34:33,070 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:33,070 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res; 36#L24-3 [2018-11-18 08:34:33,070 INFO L796 eck$LassoCheckResult]: Loop: 36#L24-3 assume true; 37#L24-1 assume !false;assume { :begin_inline_eval } true; 41#L14loopEntry assume true; 43#L14-1 assume !false;~x~0 := 1; 39#L14-3 assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 40#L4 assume !(0 == __VERIFIER_assert_~cond); 42#L4-2 assume { :end_inline___VERIFIER_assert } true; 36#L24-3 [2018-11-18 08:34:33,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,070 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 08:34:33,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:33,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1163093583, now seen corresponding path program 1 times [2018-11-18 08:34:33,074 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:33,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:33,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,075 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:34:33,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:33,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:33,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:34:33,108 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:34:33,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:34:33,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:34:33,109 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. cyclomatic complexity: 1 Second operand 4 states. [2018-11-18 08:34:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:33,134 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2018-11-18 08:34:33,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:34:33,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 7 transitions. [2018-11-18 08:34:33,135 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 08:34:33,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2018-11-18 08:34:33,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 08:34:33,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 08:34:33,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 08:34:33,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:34:33,136 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:33,136 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:33,136 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:33,136 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:34:33,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:34:33,137 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 08:34:33,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 08:34:33,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:34:33 BoogieIcfgContainer [2018-11-18 08:34:33,142 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:34:33,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:33,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:33,143 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:33,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:32" (3/4) ... [2018-11-18 08:34:33,146 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:34:33,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:33,147 INFO L168 Benchmark]: Toolchain (without parser) took 703.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -124.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:33,148 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:33,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:33,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.06 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:33,150 INFO L168 Benchmark]: Boogie Preprocessor took 14.39 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:33,150 INFO L168 Benchmark]: RCFGBuilder took 192.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:33,151 INFO L168 Benchmark]: BuchiAutomizer took 306.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:33,151 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:33,153 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.06 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.39 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 192.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 306.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 1 SDslu, 10 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...